/* ============================================================
   libvio libvioa.cn —— 「信号台 · 复古电视播放间」主题
   冷墨黑 #141114 · 米纸 #f3efe4 · 柠檬黄 #f7e12a · 录制红 #ff4545
   CRT凸屏框(扫描线罩) + 电视彩条 + ON AIR红灯牌 · 直角小圆角 4-8px
   ============================================================ */
:root{
  --ink:#141114;
  --ink2:#1e1a1e;
  --ink3:#292329;
  --paper:#f3efe4;
  --paper2:#e9e3d2;
  --yel:#f7e12a;
  --yel-d:#e2c90a;
  --red:#ff4545;
  --red-d:#d92b2b;
  --txt:#2b262b;
  --line:rgba(20,17,20,.14);
  --line-d:rgba(243,239,228,.15);
  --sh:0 16px 40px rgba(20,17,20,.24);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:var(--txt);background:var(--paper);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;font-weight:700;border-radius:6px;transition:transform .18s,box-shadow .18s,background .18s;white-space:nowrap;border:2px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn-pri{background:var(--yel);color:#221d00;box-shadow:0 10px 24px rgba(247,225,42,.35)}
.btn-pri:hover{background:#ffec4d}
.btn-line{background:transparent;color:var(--paper);border-color:rgba(243,239,228,.5)}
.btn-line:hover{border-color:var(--yel);color:var(--yel)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:#000}
.btn-lg{padding:13px 32px;font-size:16px}
.btn-xl{padding:17px 48px;font-size:19px}

/* ---------- 头部 ---------- */
.hd{position:sticky;top:0;z-index:60;background:rgba(20,17,20,.95);backdrop-filter:blur(8px);border-bottom:3px solid var(--yel)}
.hd-in{display:flex;align-items:center;gap:26px;height:66px}
.brand{display:flex;align-items:center;gap:11px;color:#fff}
.brand img{border-radius:8px}
.brand-t{display:flex;flex-direction:column;line-height:1.2}
.brand-t strong{font-size:20px;letter-spacing:1px}
.brand-t small{font-size:10px;letter-spacing:2px;color:rgba(243,239,228,.6)}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:8px 12px;font-size:14px;color:rgba(243,239,228,.78);border-bottom:2px solid transparent}
.nav a:hover{color:#fff}
.nav a.on{color:var(--yel);border-bottom-color:var(--yel)}
.hd-cta{padding:9px 22px;font-size:14px}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;margin-left:14px;padding:6px}
.burger span{width:24px;height:2px;background:#fff;transition:.25s}

/* ---------- 区块通用 ---------- */
.sec{padding:82px 0}
.sec-ink{background:var(--ink);color:var(--paper)}
.sec-paper{background:var(--paper)}
.sec-paper2{background:var(--paper2)}
.sec-h{max-width:760px;margin-bottom:42px}
.sec-ink .sec-h{margin-left:auto;margin-right:auto;text-align:center}
.kick{font-size:12px;letter-spacing:3px;font-weight:700;color:#7a6a00;margin-bottom:14px;display:flex;align-items:center;gap:10px;text-transform:uppercase}
.sec-ink .kick{justify-content:center;color:var(--yel)}
.sec-h h2{font-size:32px;line-height:1.35;letter-spacing:.5px}
.sec-ink .sec-h h2{color:#fff}
.sec-p{margin-top:12px;color:#6d6553;font-size:15.5px}
.sec-ink .sec-p{color:rgba(243,239,228,.66)}
.sec-paper2 .kick{color:#7a6a00}

/* ---------- 英雄区 ---------- */
.hero{background:radial-gradient(680px 460px at 86% 6%,rgba(247,225,42,.14),transparent 62%),radial-gradient(600px 440px at 4% 96%,rgba(255,69,69,.12),transparent 60%),var(--ink);color:var(--paper);padding:78px 0 0;position:relative;overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center;position:relative;padding-bottom:96px}
.hero h1{font-size:76px;line-height:1.05;letter-spacing:4px;color:#fff;margin:18px 0 14px}
.hero h1 em{font-style:normal;color:var(--yel);text-shadow:0 0 34px rgba(247,225,42,.5)}
.hero-slogan{font-size:23px;font-weight:700;color:#fff;margin-bottom:20px}
.hero-slogan i{font-style:normal;color:var(--red)}
.kick-live{background:var(--red);color:#fff;font-style:normal;font-size:11px;letter-spacing:2px;padding:3px 10px;border-radius:4px;animation:flicker 2.4s infinite}
@keyframes flicker{0%,100%{opacity:1}45%{opacity:1}50%{opacity:.35}55%{opacity:1}78%{opacity:.6}82%{opacity:1}}
.lead{font-size:15.5px;color:rgba(243,239,228,.76);margin-bottom:30px}
.hero-acts{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.hero-tags li{font-size:13px;padding:5px 14px;border:1px solid rgba(247,225,42,.45);color:var(--yel);border-radius:4px;letter-spacing:1px}
.hero-note{font-size:13px;color:rgba(243,239,228,.58);display:flex;align-items:center;gap:8px}
.hero-note .dot{width:8px;height:8px;border-radius:50%;background:var(--red);animation:flicker 2s infinite;flex:none}

/* CRT 凸屏框 */
.hero-r{position:relative;display:flex;justify-content:center}
.crt{position:relative;background:linear-gradient(160deg,#3a333a,#211d21 70%);border-radius:26px;padding:18px;box-shadow:var(--sh),inset 0 2px 6px rgba(255,255,255,.12),inset 0 -6px 14px rgba(0,0,0,.6)}
.crt-screen{position:relative;border-radius:16px;overflow:hidden;box-shadow:inset 0 0 26px rgba(0,0,0,.75)}
.crt-screen img{width:230px;border-radius:16px}
.crt-scan{position:absolute;inset:0;border-radius:16px;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(0,0,0,.16) 0 2px,transparent 2px 4px);mix-blend-mode:multiply}
.crt-scan::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 50% 40%,transparent 55%,rgba(0,0,0,.5))}
.crt-onair{position:absolute;top:-14px;right:-14px;background:var(--red);color:#fff;font-size:11px;font-weight:800;letter-spacing:2px;padding:6px 12px;border-radius:4px;box-shadow:0 0 18px rgba(255,69,69,.7);animation:flicker 2.4s infinite;z-index:3}
.chip{position:absolute;font-size:12.5px;font-weight:700;border-radius:6px;padding:10px 14px;box-shadow:var(--sh);z-index:4}
.chip b{color:var(--red)}
.chip-lines{left:-6%;top:16%;background:var(--yel);color:#221d00;transform:rotate(-4deg)}
.chip-resume{right:-4%;bottom:10%;background:var(--paper);color:var(--txt);border-left:4px solid var(--red);transform:rotate(2.5deg)}

/* 电视彩条 */
.tvbars{display:flex;height:12px;width:100%}
.tvbars i{flex:1}
.tvbars i:nth-child(1){background:#c8c8c8}
.tvbars i:nth-child(2){background:var(--yel)}
.tvbars i:nth-child(3){background:#3ad0c8}
.tvbars i:nth-child(4){background:#3aa655}
.tvbars i:nth-child(5){background:#c86ad0}
.tvbars i:nth-child(6){background:var(--red)}
.tvbars i:nth-child(7){background:#3355c8}

/* ---------- 频道点播墙 ---------- */
.chan-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.cw-i{background:var(--paper);padding:14px 12px 16px;display:flex;flex-direction:column;gap:10px;transition:background .2s}
.cw-i:hover{background:#fff}
.cw-img{border-radius:6px;overflow:hidden;border:2px solid var(--ink)}
.cw-img img{border-radius:4px}
.cw-t b{display:block;font-size:14px;letter-spacing:.5px}
.cw-t span{font-size:12px;color:#8a7f66}

/* ---------- 热播榜 ---------- */
.rk{display:grid;grid-template-columns:1.15fr .8fr 1.05fr;gap:34px;align-items:start}
.rk-top{position:relative;background:var(--ink2);border:1px solid var(--line-d);border-radius:8px;padding:26px;display:grid;grid-template-columns:150px 1fr;gap:20px}
.no1{position:absolute;top:-16px;left:18px;font-size:15px;font-weight:900;letter-spacing:2px;color:var(--yel);border:2px solid var(--yel);padding:4px 12px;border-radius:4px;background:var(--ink)}
.rk-poster{position:relative;border-radius:6px;overflow:hidden;border:2px solid var(--yel)}
.stamp{position:absolute;right:8px;bottom:8px;background:var(--red);color:#fff;font-style:normal;font-size:11px;font-weight:800;letter-spacing:1px;padding:4px 8px;border-radius:4px;transform:rotate(-6deg)}
.rk-info h3{font-size:21px;color:#fff;line-height:1.4}
.rk-info h3 small{display:block;font-size:12px;color:var(--yel);letter-spacing:2px;margin-top:4px}
.rk-meta{font-size:13px;color:rgba(243,239,228,.6);margin:8px 0 10px}
.rk-score{display:flex;align-items:baseline;gap:10px;margin-bottom:12px}
.rk-score b{font-size:34px;color:var(--yel);line-height:1}
.rk-score span{font-size:12.5px;color:rgba(243,239,228,.55)}
.rk-desc{font-size:14px;color:rgba(243,239,228,.75);margin-bottom:14px}
.rk-tag{display:inline-block;font-size:12px;color:var(--red);border:1px solid rgba(255,69,69,.55);border-radius:4px;padding:4px 10px;letter-spacing:1px}
.rk-shot{text-align:center}
.crt-s{display:inline-block;padding:14px;border-radius:22px}
.crt-s .crt-screen,.crt-s .crt-screen img,.crt-s .crt-scan{border-radius:12px}
.crt-s .crt-screen img{width:200px}
.rk-shot p{margin-top:14px;font-size:13px;color:rgba(243,239,228,.6);letter-spacing:1px}
.rk-list{display:flex;flex-direction:column;gap:1px;background:var(--line-d);border:1px solid var(--line-d);border-radius:8px;overflow:hidden}
.rk-list li{display:flex;align-items:center;gap:14px;background:var(--ink2);padding:16px 18px}
.rl-no{font-size:20px;font-weight:900;color:var(--yel);width:34px;flex:none}
.rk-list li div{flex:1}
.rk-list b{display:block;font-size:15.5px;color:#fff}
.rk-list em{font-style:normal;font-size:12px;color:rgba(243,239,228,.55)}
.rk-list strong{font-size:17px;color:var(--red)}

/* ---------- 数字绸带 ---------- */
.ribbon{background:var(--yel);border-top:4px solid var(--ink);border-bottom:4px solid var(--ink)}
.ribbon-in{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;padding:34px 24px}
.rb-i{text-align:center;color:#221d00;position:relative}
.rb-i+.rb-i::before{content:"";position:absolute;left:-13px;top:12%;bottom:12%;width:2px;background:repeating-linear-gradient(0deg,rgba(20,17,20,.4) 0 6px,transparent 6px 12px)}
.rb-i b{font-size:40px;font-weight:900;line-height:1.1}
.rb-i i{font-style:normal;font-size:18px;font-weight:800;margin-left:2px}
.rb-i span{display:block;font-size:13.5px;margin-top:6px;letter-spacing:1px;color:rgba(34,29,0,.78)}

/* ---------- 内容方向 ---------- */
.zones{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-bottom:34px}
.zone{background:var(--paper2);padding:26px 22px;transition:background .2s}
.zone:hover{background:#f6f2e6}
.z-ico{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:6px;background:var(--ink);color:var(--yel);font-size:19px;font-weight:800;margin-bottom:16px}
.z2 .z-ico{background:var(--red);color:#fff}
.z3 .z-ico{background:var(--yel);color:#221d00}
.z4 .z-ico{background:var(--ink3);color:var(--yel)}
.zone h3{font-size:17.5px;margin-bottom:8px}
.zone p{font-size:13.5px;color:#6d6553}
.z-new{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;background:linear-gradient(115deg,var(--ink) 55%,var(--red-d));border-radius:8px;padding:38px 42px;color:var(--paper);box-shadow:var(--sh)}
.zn-tag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:2px;color:var(--yel);border:1px solid rgba(247,225,42,.55);border-radius:4px;padding:4px 10px;margin-bottom:16px}
.zn-l h3{font-size:25px;color:#fff;margin-bottom:12px}
.zn-l p{font-size:14.5px;color:rgba(243,239,228,.78);margin-bottom:22px}
.zn-r{display:flex;justify-content:center}
.zn-r img{width:190px;border-radius:10px;border:3px solid var(--yel);box-shadow:0 12px 30px rgba(0,0,0,.45)}

/* ---------- 精选专题 ---------- */
.tps{display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:start}
.tps-l{display:flex;flex-direction:column;gap:18px}
.tp-i{display:grid;grid-template-columns:120px 1fr;gap:20px;background:var(--ink2);border:1px solid var(--line-d);border-radius:8px;padding:18px;transition:border-color .2s}
.tp-i:hover{border-color:rgba(247,225,42,.5)}
.tp-img{border-radius:6px;overflow:hidden;border:2px solid var(--red)}
.tp-i:nth-child(2) .tp-img{border-color:var(--yel)}
.tp-no{font-size:11px;font-weight:800;letter-spacing:2px;color:var(--red)}
.tp-i:nth-child(2) .tp-no{color:var(--yel)}
.tp-t h3{font-size:18px;color:#fff;margin:6px 0 8px}
.tp-t p{font-size:13.5px;color:rgba(243,239,228,.7)}
.tps-r{position:sticky;top:96px;text-align:center}
.tps-cap{margin-top:14px;font-size:13px;color:rgba(243,239,228,.6);letter-spacing:1px}

/* ---------- 应用画面长卷 ---------- */
.reel{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.rl-f{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.rl-f figcaption{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--ink);color:var(--paper)}
.rl-f figcaption b{font-size:12px;letter-spacing:2px;color:var(--yel)}
.rl-f figcaption span{font-size:12.5px}
.rl-f img{width:100%}
.rl-y{border-bottom:5px solid var(--yel)}
.rl-r{border-bottom:5px solid var(--red)}

/* ---------- 功能四格 ---------- */
.funcs{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-d);border:1px solid var(--line-d)}
.fn-i{background:var(--ink2);padding:28px 24px;transition:background .2s}
.fn-i:hover{background:var(--ink3)}
.fn-no{font-size:12px;font-weight:800;letter-spacing:2px;color:var(--red);display:block;margin-bottom:14px}
.fn-i:nth-child(even) .fn-no{color:var(--yel)}
.fn-i h3{font-size:17.5px;color:#fff;margin-bottom:10px}
.fn-i p{font-size:13.5px;color:rgba(243,239,228,.68)}

/* ---------- 上手四步 · 勾选清单 ---------- */
.ck-wrap{display:grid;grid-template-columns:260px 1fr;gap:36px;align-items:start}
.ck-side{position:sticky;top:96px}
.ck-prog{background:var(--ink);border-radius:8px;padding:28px 24px;text-align:center;color:var(--paper);box-shadow:var(--sh)}
.ck-pct{font-size:44px;font-weight:900;color:var(--yel);line-height:1.1;display:block}
.ck-bar{height:10px;background:rgba(243,239,228,.16);border-radius:99px;margin:16px 0 14px;overflow:hidden}
.ck-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--yel),var(--red));border-radius:99px;transition:width .45s ease}
.ck-state{font-size:13px;letter-spacing:1px;color:rgba(243,239,228,.7)}
.ck-state.done{color:var(--yel);font-weight:700}
.ck-list{display:flex;flex-direction:column;gap:16px}
.ck{display:grid;grid-template-columns:52px 1fr;gap:18px;background:#fff;border:1px solid var(--line);border-left:6px solid var(--ink);border-radius:8px;padding:22px 24px;transition:border-color .2s,transform .2s}
.ck:hover{transform:translateX(4px)}
.ck.done{border-left-color:var(--yel)}
.ck-box{width:40px;height:40px;border-radius:6px;border:3px solid var(--ink);background:#fff;position:relative;transition:background .2s,border-color .2s;margin-top:4px}
.ck-box::after{content:"";position:absolute;left:11px;top:5px;width:10px;height:18px;border:solid #221d00;border-width:0 4px 4px 0;transform:rotate(42deg) scale(0);transition:transform .2s}
.ck.done .ck-box{background:var(--yel);border-color:var(--yel-d)}
.ck.done .ck-box::after{transform:rotate(42deg) scale(1)}
.ck-no{font-size:11px;font-weight:800;letter-spacing:2px;color:var(--red)}
.ck.done .ck-no{color:#7a6a00}
.ck-t h3{font-size:18px;margin:4px 0 8px}
.ck-t p{font-size:14px;color:#6d6553}

/* ---------- 常见疑问 · 图标网格卡 ---------- */
.fg{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-d);border:1px solid var(--line-d)}
.fg-i{background:var(--ink2);padding:28px 26px;transition:background .2s}
.fg-i:hover{background:var(--ink3)}
.fg-ico{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;font-size:17px;font-weight:800;margin-bottom:16px}
.f1{background:var(--yel);color:#221d00}
.f2{background:var(--red);color:#fff}
.f3{background:var(--paper);color:var(--ink)}
.f4{background:var(--red);color:#fff}
.f5{background:var(--yel);color:#221d00}
.f6{background:var(--paper);color:var(--ink)}
.fg-i h3{font-size:17px;color:#fff;margin-bottom:10px}
.fg-i p{font-size:13.5px;color:rgba(243,239,228,.7)}

/* ---------- 观众留言 · 软木便签墙 ---------- */
.cork{background:#8a6a42 radial-gradient(circle at 30% 20%,rgba(255,255,255,.09),transparent 55%);border:10px solid #5f4628;border-radius:8px;padding:38px 34px;display:grid;grid-template-columns:repeat(3,1fr);gap:30px;box-shadow:var(--sh),inset 0 0 40px rgba(0,0,0,.28)}
.pin-note{position:relative;padding:22px 20px 16px;color:#3a3128;font-size:14px;line-height:1.75;box-shadow:0 8px 18px rgba(0,0,0,.3)}
.pin-note::before{content:"";position:absolute;top:-9px;left:50%;transform:translateX(-50%) rotate(-2deg);width:64px;height:18px;background:rgba(243,239,228,.55);border:1px solid rgba(0,0,0,.08)}
.n-y{background:#f7e9a8;transform:rotate(-2deg)}
.n-w{background:#f8f5ec;transform:rotate(1.5deg)}
.n-p{background:#f3d9c8;transform:rotate(-1deg)}
.cork .pin-note:nth-child(4){transform:rotate(1.8deg)}
.cork .pin-note:nth-child(5){transform:rotate(-1.6deg)}
.cork .pin-note:nth-child(6){transform:rotate(2.2deg)}
.pn-txt{margin-bottom:14px}
.pn-meta{display:flex;align-items:baseline;justify-content:space-between;gap:10px;border-top:1px dashed rgba(0,0,0,.2);padding-top:10px}
.pn-meta b{font-size:13px}
.pn-meta time{font-size:11.5px;color:rgba(58,49,40,.66);font-variant-numeric:tabular-nums}

/* ---------- 下载 · 霓虹开播牌 ---------- */
.sec-get{background:radial-gradient(600px 380px at 50% 0%,rgba(247,225,42,.12),transparent 60%),var(--ink);padding:92px 0}
.neon{position:relative;max-width:760px;margin:0 auto;text-align:center;border:4px solid var(--yel);border-radius:12px;padding:56px 48px 44px;background:rgba(30,26,30,.6);box-shadow:0 0 42px rgba(247,225,42,.35),inset 0 0 60px rgba(247,225,42,.06)}
.neon-onair{position:absolute;top:-16px;left:50%;transform:translateX(-50%);background:var(--red);color:#fff;font-size:12px;font-weight:800;letter-spacing:3px;padding:6px 18px;border-radius:4px;box-shadow:0 0 20px rgba(255,69,69,.75);animation:flicker 2.4s infinite}
.neon-logo{border-radius:12px;margin:0 auto 20px;border:2px solid rgba(247,225,42,.6)}
.neon-t{font-size:40px;color:#fff;letter-spacing:2px;margin-bottom:16px;text-shadow:0 0 18px rgba(247,225,42,.55),0 0 46px rgba(247,225,42,.3)}
.neon-t em{font-style:normal;color:var(--yel);animation:neonblink 3s infinite}
@keyframes neonblink{0%,100%{opacity:1}88%{opacity:1}90%{opacity:.4}92%{opacity:1}95%{opacity:.6}97%{opacity:1}}
.neon-p{font-size:15px;color:rgba(243,239,228,.78);max-width:560px;margin:0 auto 28px}
.neon-links{margin-top:18px;font-size:13px;color:rgba(243,239,228,.62);letter-spacing:1px}
.neon-upd{margin-top:8px;font-size:12px;color:rgba(243,239,228,.4)}

/* ---------- 页脚 ---------- */
.ft{background:var(--ink);color:rgba(243,239,228,.7);border-top:4px solid var(--yel)}
.ft-in{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:56px 24px 44px}
.ft-brand .brand{margin-bottom:16px}
.ft-brand p{font-size:13.5px;color:rgba(243,239,228,.6)}
.ft-col h4{font-size:15px;color:#fff;margin-bottom:14px;letter-spacing:1px}
.ft-col li{margin-bottom:9px}
.ft-col a{font-size:13.5px;color:rgba(243,239,228,.62);transition:color .15s}
.ft-col a:hover{color:var(--yel)}
.ft-b{border-top:1px solid var(--line-d);padding:18px 0;text-align:center}
.ft-icp{font-size:12.5px;color:rgba(243,239,228,.45)}
.ft-copy{font-size:12.5px;color:rgba(243,239,228,.45);margin-top:4px}

/* ---------- 悬浮件 ---------- */
.backtop{position:fixed;right:24px;bottom:24px;z-index:70;width:44px;height:44px;border-radius:6px;border:0;background:var(--ink);color:var(--yel);font-size:19px;box-shadow:var(--sh);opacity:0;pointer-events:none;transition:opacity .25s,transform .15s}
.backtop.show{opacity:1;pointer-events:auto}
.backtop:hover{transform:translateY(-2px)}

/* ---------- 入场动画 ---------- */
.io{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.io.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .nav{position:fixed;inset:66px 0 auto 0;background:rgba(20,17,20,.98);flex-direction:column;padding:14px 24px 22px;gap:2px;display:none;border-bottom:3px solid var(--yel)}
  .nav.open{display:flex}
  .nav a{padding:11px 4px;font-size:15px}
  .burger{display:flex}
  .hd-cta{display:none}
  .hero-in{grid-template-columns:1fr;gap:44px;padding-bottom:72px}
  .hero h1{font-size:56px}
  .chip-lines{left:0;top:8%}
  .chip-resume{right:0;bottom:4%}
  .chan-wall{grid-template-columns:repeat(3,1fr)}
  .rk{grid-template-columns:1fr;gap:30px}
  .rk-shot{order:2}
  .rk-list{order:3}
  .ribbon-in{grid-template-columns:repeat(2,1fr);gap:22px}
  .rb-i:nth-child(3)::before{display:none}
  .zones{grid-template-columns:repeat(2,1fr)}
  .z-new{grid-template-columns:1fr;gap:26px;padding:32px 28px}
  .tps{grid-template-columns:1fr;gap:30px}
  .tps-r{position:static}
  .reel{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:10px}
  .rl-f{flex:0 0 72%;scroll-snap-align:start}
  .funcs{grid-template-columns:repeat(2,1fr)}
  .ck-wrap{grid-template-columns:1fr;gap:24px}
  .ck-side{position:static}
  .fg{grid-template-columns:repeat(2,1fr)}
  .cork{grid-template-columns:repeat(2,1fr);padding:28px 22px;gap:22px}
  .ft-in{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:640px){
  .sec{padding:60px 0}
  .sec-h h2{font-size:25px}
  .hero h1{font-size:44px}
  .hero-slogan{font-size:19px}
  .chan-wall{grid-template-columns:repeat(2,1fr)}
  .rk-top{grid-template-columns:1fr;padding:22px}
  .rk-poster{max-width:220px}
  .ribbon-in{grid-template-columns:repeat(2,1fr);padding:26px 24px;gap:18px}
  .rb-i+.rb-i::before{display:none}
  .rb-i b{font-size:32px}
  .zones{grid-template-columns:1fr}
  .reel .rl-f{flex:0 0 82%}
  .funcs{grid-template-columns:1fr}
  .fg{grid-template-columns:1fr}
  .cork{grid-template-columns:1fr;border-width:6px;padding:24px 16px}
  .neon{padding:46px 24px 36px}
  .neon-t{font-size:30px}
  .ft-in{grid-template-columns:1fr;gap:24px;padding:44px 24px 34px}
  .backtop{right:18px;bottom:24px;width:40px;height:40px}
  .ck{grid-template-columns:44px 1fr;padding:18px}
  .ck-box{width:34px;height:34px}
  .ck-box::after{left:9px;top:3px;width:9px;height:16px}
}